Software Quality Engineering Lecture No 3 Part 1

Software Quality Engineering Lecture No. 3

Part- 1 Overview and Basics

Summary of the previous lecture n Meeting People’s Quality Expectations n General Expectations n Meeting Quality Expectations 4 Internal Expectations / Consumer Expectations 4 External Expectations / Producer Expectations n Software Quality Engineering (SQE) activities 4 Testing => Quality Assurance Alternatives => SQE n Software Quality Framework

Outlines n ISO-9126 Quality Framework n Other Quality Frameworks n Correctness, Defects and Quality n Quality, as a Historical Perspective n How to prevent defect

Objectives n To describe the standards for quality engineering n To understand distinguish between correctness defect and quality and detection, prevention and removal

ISO-9126 Quality Framework

Other Quality Frameworks

Correctness, Defect and Quality

Correctness, Defect and Quality

Defining Quality in SQE

Quality: Historical Perspective

Quality: Historical Perspective (conti. . )

Quality Assurance n Quality Assurance mainly deals in 1. Dealing with Defect 2. Defect Prevention 3. Defect Detection and Removal § QA focus on correctness aspect of Q § QA as dealing with defects § – post-release: impact on consumers § – pre-release: what producer can do. § what: testing & many others § when: earlier ones desirable (lower cost) but may not be feasible § how ⇒ classification below

Summary of Today’s Lecture n We explored some standards of Quality Engineering n Furthermore, we briefly overviewed following 4 Fault, error , bug 4 Detect Prevention Overview

Overview of Next lecture 4 Testing 4 Fault Overview Tolerance Overview 4 Safety Assurance Overview 4 Formal Method Overview 4 Inspection Overview

The End